Ore-crusher



' No. 626,326. Patented June s, |899.

J. F, KEvTon.

DRE CRUSHER.

(Application Bled Apr. 29, n1897.) (No Model.) 2 Sheets-$heet l.

S14/vento@ @7071/71/17 fyof/ 9. 9 m 6., e n u l d e t n e .ol a P ".R.0E Tw um KC FUE .R J0 om 2 3. 5 2 6 nw N (Application led Apr. 29,1897.)

2 Sheets-Sheet 2.

(No Model.)

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NTTT. STATES PATENT Fluor-3.

JOHN F. -KEYTON, OF BAKER CITY, OREGON.

ORE-CRUSHER.

SPECIFICATION forming part of Letters Patent No. 626,326, dated June 6,1899. l Application filed April 29,1897. Serial No. 634,312. (No model.)

T0 all whom, t may concern:

Be it known that I, JOHN F. KEYTON, of Baker City, in the county ofBaker and State of Oregon, have invented certain new and usefulImprovements in Ore-Crushers; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to quartz or ore crushers of that class employinga series of impacting devices movable around a common center andcoacting with a series of dies resting in a mortar.

The invention consists, essentially, of abattery composed of a series ofstamp-arms jointed to and rapidly rotated by a wheel, the arms carryingstamps or mullers over stepped dies located beneath them.

The invention further consists of' the details of construction andarrangement of the several parts, which will be more fully hereinafterdescribed and claimed.

In batteries as heretofore constructed the rotation and operation of theimpacting devices have been comparatively slow and the grinding processpartially ineffectual in liberating the gold. This difficulty has beendue to a lack of continued or extended contact of the impacting deviceswith the under dies. Another difficulty encountered in such machines,preventing them from giving better results, is the frail structure ofthe several parts, that necessarily require slow movement to obviatefracture or injury.

One object of the present invention is to arrange the arms and stamps ormullers relatively over dies having long drag-surfaces be-l tween eachfall and to conne the ore closely over and crush and grind it betweenthe said surfaces.

A further object is to so attach the arms that they will not be disabledby rapid rotation around a common center and be capable also ofsupporting and operatingheavy stamps or mullers.

A further object is to retard the movement of the pulp being operatedupon in such manv ner as to prevent it from being carried around therace as an unobstructed stream.

Another object is to release the water and the application of propersieves, and thereby avoid loss.

In the accompanying drawings, Figure 1 is a perspective View of anore-crusher embodying the invention. Fig. 2 is a similar view of theimproved ore-Crusher, showing the sides removed and one part thereofpositioned at one side. Fig. 3 is a detail perspective view of thedrag-wheel, showing one of the dragarms disconnected therefrom and atone side thereof. Fig. 4: is a detail perspective View, on an enlargedscale, of a portion of the bottom of the mortar, showing the die-seatsthere in and the dies positioned in connection therewith.

Referring to the drawings, wherein similar numerals are employed toindicate corresponding parts in the several views, the numeral ldesignates a mortar of circular form and of suitable weight and materialto resist fracture, having at regular intervals on the lower portionthereof enlargements or lugs 2, with openings therethrough for thepurpose of receiving anchors of suitable form and securing the mortar toa stone or timber rest. Rising at regular intervals from the said mortarare uprights 3, which are securely bolted thereto and have attached tothe upper ends thereof inwardly extending obliquely arranged braces 4:,running to a common center 5, which forms a bearing and has an openingextending therethrough for a purpose which will be presently set forth.To a portion of the upper ends of the uprights 3 is a crossbrace 6,supporting a journal-bearing 7, in which is rotatably mounted ahorizontal shaft 8, having a pulley 9 on the outer end, to which poweris to be applied for driving the shaft 8 and the entire machine. On theinner part of the adjacent braces 4 another brace l0 is secured andsupports a second journal-box 11, through which the said shaft 8 alsopasses, and on the inner end of the latter is a pinion 12, meshing witha bevel gear-wheel 13, keyed to the upper end of a shaft l-t, whichextends perpendicularly through the center of the machine and has apivot-bearin g at its lower end of suitable construction. Beneath thebevel-Wheel 13 is a flanged plate l5 to prevent grease or oil fromdropping int-o the battery. The shaft 8 and pulley 9, together withore-pulp from the battery by grades through 1 the pinion 12, gear-wheel13, and plate 15,

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- braces 4 meet at the center.

may be dispensed with, if so 'desi-red, `and .a driving-pulleysecu-reddirectly 'on the upper end of the shaft 14, the latter having bearing inthe opening formed at the point where the On the shaft 14, below thebraces 4, is keyed the hub 16 of a wheel 17the latter being formed witha series of openings 1S, in which are fitted and secured arms 19, andover the said arms is mounted a circle brace 20, which is bolted inpositionand reinforces and holds the said arms against movement andlooseningat the: The outer ends of the arms 19 are slightly deflected topoints where they are attached.

bring the parts carried thereby in proper position within the mortar andhave on one side hinge-sections 21 to removably receive correspondingformations on the upper ends of drag-arms 22 and attached by removablepintles or bolts 23. On the free end of each drag-4 cured a staple oreye 28, to which a chain or` other device may be attached in lifting andremoving the stamp carrying the shoe,fto

- getherwith the 4arm attached thereto, from the crnsher or battery.

' `In the center of the vcrusher or battery is mounted an inside `drum429, having lower flanges 30 applied to similar flanges 31 on a lowersupport 32,A and the said inside drum is also provided at suitablepoints with vertical anges 33 to break up a 4rapid swirl or current ofthe pnlpy material in the Crusher or battery to thereby cause a moreeffective operation of the stamps or mullers on the ore placed in thedevice. Surrounding the upper part of'the cru-Sher are outside rims orbands 34,*which have lower anges 85 and endlflanges, the said flanges 35being bolted to a top flange 37 on the mortar 1, and the end flanges 36bolted to similar flanges on corresponding'sections, and `betweentheinner sides ofthe said outside rims or bands and the inside vdrum anarrow circular race is formed to confine the pulp in such position asfto be directly operated upon by the stam ps or mullers, and the flangeslocated at this point `preventthe water from whirlingaround with thestamps 24. As clearly shown by Fig-4, the bottom ofthe ymortar 1 hasprojected upwardly therefrom and arranged 4in circular form a series ofdie-seats 38, a su-fcient-thickness of material being left between thelower terminati-ons of said die-seats, both ina vertical and lateraldirection,vin the bottom of the mortar as to resist the pound or weightdelivered thereon. These die-seats are arrangedat regular intervalsandconsist of upwardly projecting enlargements inclined, as at 39,011their upper edges and from the highest point formed with avertically-depending wall 40, extending partially down through thethickness of the height of the enlargement at this point andmeetingaslightly downward beveled wall 4l which is again continued atits front termination by a short vertical wall 42. The said walls 41 and42 form a groove, and at the opposite reduced portion of the enlargementthe end thereof eX- tends downwardly at a very slight incline, as at 43.The space formed between the downward incline 43 and the groove oppositeand in advance thereof, together with the highest point of the verticalwall 40 of each enlargement, providesa seat for removably receivingV adie 44, having an upper inclined edge 45 of considerable extent andterminating above the highest point of the enlargement in aslightly-beveled wall 4G. The beveled edge 45 of the die forms a longsurface, over which the shoes carried by the stamps and drag-arms scouras well as crush the'ore and facilitate the liberating of gold from thematerial carrying the same, especially' when sulfids are present and the4metal is rusty, to thereby cause the Quicksilver or amalgam to morereadily pick up the brightened particles of gold, as will be understood.By having the said wall 46 inclined, as shown, the stamps passingthereover drop downward and are thereby caused to travel or operate overthe entire surface 45 of each die. The under side of each die isconstructed with a recess 47, corresponding relatively to the contour ofthe upper surface of the enlargement, having the upper inclined edge andthe front inclined wall, and the front of each die is also provided witha tenon 48, fitting in the groove formed by the walls 40 and 41. By thisarrangement the die is prevented from jumping or tilting, and at thesame time can be readily removed or placed in position, and at oneendeach die has an opening 49 for the engagement -with a suitable liftingdevice operated by power or otherwise manipulated.

In one of the rims or bands is a screen-discharge 50, covered by amovable plate 51, and when the said screen-discharge is closed the waterand pulp arecompelled to rise to'an adjacently-situated discharge 52 inthe upper edge of the outside rim or band and is controlled by a slide53, and by this means a finegrinding and thoroughscouring action isattained and the pulp is permitted to run out of the Crusher or battery,and the gold is vloeing operated upon and the particles thereof havebeen fully exposed or brightened, so as to readily adhere to thequicksilver that is held in the battery. By operating the slide 53 tocontrol the size of the opening the grade of fineness to which the oreis ground is regulated and different results can be obtained. When theslide is lowered, it forms a wide flat tube, and as a result the -oremust be ground and scoured into a finer pulp than if the slide was leftto provide a free exit-open- IOO IIO

ing. lVhe-n the Crusher or battery is being employed in treatinggold-bearing ore, this operation facilitates the amalgam process in thebattery. If it is desired to crush the ore more rapidly, the movableplate is opened and a suitable form of screen is placed over theopening, which will be arranged in accordance with the character of theore being operated upon and the degree of Vfineness to which it isrequired to be crushed. On the opposite side of the crusher or battery,in one of the outside rims or bands 34, a feed opening or hopper 5t islocated, by means of which the ore is placed in the Crusher or battery,and water maybe supplied by means of a rubber hose or pipe in anypreferred manner.

The material advantages in this device, not only as t-o its increasedcapacity, but also in the economy of liberating and saving the preciousmetals, make it a valuable accessory to mining operations. The rapidityof movem ent of the operating mechanism is also beneicial in this classot' devices by reason of the effectiveness and greater capacity andoutput within a certain time. As an example of the power of the machine,as heretofore set forth, there are five stamps or In ullers employed andseven dies with seven drops to each stamp, and the weight of the stampscarried by the arms is about four hundred pounds, more or less. It themachine is run at twenty-tive revolutions per minute, which is aperfectly safe speed, it would produce one hundred and seventy-iivedrops to each of the stamps or m ullers, which is greatlyin excess ofthe number of drops of other mills now commonly employed. This increasesthe crushing and scouring action, and consequently permits a greaterquantity of ore to be operated upon within a given time.

It is obviously apparent that many minor changes in the details ofconstruction and arrangement might be made and substituted for thoseshown and described without in the least departing from the nature orspirit of the invention.

My object in having the wheel-arms deflected, as described, is to avoidtorsion through centrifugal action by causing an equal draft on the forkor hinged legs of said arms through a simple hinged connection betweenthe wheel-arms 19 and the dragarms 22. The drag-wheel as a whole isbuilt u p as described, so that it may be easily repaired in case anypart of the same is broken or injured and that it may be taken to piecesfor packing or shipping.

Having thus described the invention, what is claimed as new is* l. In anore-crusher, the combination of a drag-wheel involving a hub providedwith slots, arms fitted into said slots, an annular band or braceattached to said arms, the arms being bent or deflected outside thebrace, drag-arms jointed to the deflected projections, and stamps ormuilers, substantially as described.

2. In an ore-Crusher, the combination of a 1n ortarhaving enlargementswith recesses between them to form seats, and a groove at the lowerportion of one end of each recess, and dies removably fitted over thesaid enlarge ment and having an under contour corresponding thereto andthe recesses between the same, and also provided with tenons to engagethe said grooves, substantially as and for the purposes specified.

In testimony whereof I have signed this speciication in the presence oftwo subscrib ing witnesses.

JOIIN F. KEYTON.

Witnesses:

HERMAN FUcI-Is, JAMEs T. CHoUL.

